CVE-2025-9180

HIGH 8.1

Same-origin policy bypass in the Graphics: Canvas2D component

CVSS Score

8.1

EPSS Score

0.0%

EPSS Percentile

9th

Same-origin policy bypass in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 142, Firefox ESR 115.27, Firefox ESR 128.14, Firefox ESR 140.2, Thunderbird 142, Thunderbird 128.14, and Thunderbird 140.2.

Vendor	mozilla
Product	firefox
Ecosystems	Browser JavaScript
Industries	Technology
Published	Aug 19, 2025
Last Updated	Apr 13, 2026

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Affected Versions

Mozilla / Firefox

All versions affected

Mozilla / Thunderbird

All versions affected

References

NVD ↗ CVE.org ↗ EPSS Data ↗

bugzilla.mozilla.org: https://bugzilla.mozilla.org/show_bug.cgi?id=1979782 mozilla.org: https://www.mozilla.org/security/advisories/mfsa2025-64/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2025-65/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2025-66/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2025-67/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2025-70/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2025-71/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2025-72/ lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/08/msg00018.html lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/08/msg00016.html

Credits

Tom Van Goethem